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<document id="55F16BDDD8C9A79678850252B3779F56" ID-CLB-Dataset="20388" ID-DOI="10.11646/phytotaxa.538.2.1" ID-GBIF-Dataset="eb5a70bc-5ae4-4dc2-a005-8790b2eb47d3" ID-ISSN="1179-3163" ID-Zenodo-Dep="6333654" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1646638763417" checkinUser="plazi" docAuthor="Xavier, Miguel D., Silva-Filho, Alexandre G. S., Wartchow, Felipe &amp; Baseia, Iuri G." docDate="2022" docId="03B14A56265EFF85FF19ED99FDDB0694" docLanguage="en" docName="phytotaxa.538.2.1.pdf" docOrigin="Phytotaxa 538 (2)" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Rhodocybe mellea var. depressa M. D. Xavier, Silva-Filho &amp; Wartchow FW 2022, var. nov." docType="treatment" docVersion="6" lastPageNumber="94" masterDocId="FF88322E265BFF82FF91ED6DFFC50419" masterDocTitle="Fine-scale diversity in Rhodocybe mellea (Entolomataceae, Basidiomycota), with a description of a new variety and notes on sclerotia formation in Rhodocybe" masterLastPageNumber="99" masterPageNumber="87" pageNumber="92" updateTime="1699317252033" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo id="01BF30D5033ADA2DCAC1D9746EF11311">
<mods:title id="642573B37FA297375689BCD88DA555B0">Fine-scale diversity in Rhodocybe mellea (Entolomataceae, Basidiomycota), with a description of a new variety and notes on sclerotia formation in Rhodocybe</mods:title>
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<mods:namePart id="096C52F8B9032759F2F4FC53FE8854C9">Xavier, Miguel D.</mods:namePart>
<mods:nameIdentifier id="42566C2FA91951D51B9F5F507F0740F0" type="ORCID">0000-0002-2059-4008</mods:nameIdentifier>
<mods:affiliation id="35AB5EB3690BC8C471D009F1972B71B5">Programa de Pós-Graduac ̧ ão em Sistemática e Evoluc ̧ ão, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil. &amp; mdorcinoxavier @ gmail. com; https: // orcid. org / 0000 - 0002 - 2059 - 4008</mods:affiliation>
<mods:nameIdentifier id="28FB11F16E1DABE40DB1041E5A5ADFB8" type="email">mdorcinoxavier@gmail.com</mods:nameIdentifier>
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<mods:name id="A931A6644C3A9E369F02D145EAAAF91D" type="personal">
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<mods:namePart id="631A7DF4807F62B9F9CADDFBDEE1CFC8">Silva-Filho, Alexandre G. S.</mods:namePart>
<mods:nameIdentifier id="D64EAE2B303BB63C25B89EAD3DA99AC5" type="ORCID">0000-0003-3356-6847</mods:nameIdentifier>
<mods:affiliation id="E2DDD3C1F83CCEB844DAEBE3399D67B9">Programa de Pós-Graduac ̧ ão em Sistemática e Evoluc ̧ ão, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil. &amp; silvafilhoags @ gmail. com; https: // orcid. org / 0000 - 0003 - 3356 - 6847</mods:affiliation>
<mods:nameIdentifier id="EFD5D089E9FAC3C88419A85D6A9B897D" type="email">silvafilhoags@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name id="C536BE11ABDF9754E1E3A60D20CA013D" type="personal">
<mods:role id="5C6AB84C528D2C18CC93C0526F0DDA79">
<mods:roleTerm id="AD8CD425177AD8E0C688AA217AFB1FD9">Author</mods:roleTerm>
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<mods:namePart id="81D8AD6C7E312470DE89F73526AC8956">Wartchow, Felipe</mods:namePart>
<mods:nameIdentifier id="222148A791C8093D3D670C5C852FCB7C" type="ORCID">0000-0003-4930-565X</mods:nameIdentifier>
<mods:affiliation id="0E403EA7C45E1B6283F030782E79DEDC">Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil. &amp; fwartchow @ yahoo. com. br; https: // orcid. org / 0000 - 0003 - 4930 - 565 X</mods:affiliation>
<mods:nameIdentifier id="C8CB48FAA2BD0E7B36A2ECDC7420ADEA" type="email">fwartchow@yahoo.com.br</mods:nameIdentifier>
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<mods:namePart id="F09E5ABE22FDBA385DE81BD5602F5821">Baseia, Iuri G.</mods:namePart>
<mods:nameIdentifier id="169EA01B6FD3918BFD9FF08E9F16E1EE" type="ORCID">0000-0002-7242-0587</mods:nameIdentifier>
<mods:affiliation id="C70FE7D04152A0C25D5588A20A543A00">Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil. &amp; iuribaseia @ gmail. com; https: // orcid. org / 0000 - 0002 - 7242 - 0587</mods:affiliation>
<mods:nameIdentifier id="B7F24A9AB2F1A63CCD3E233DBEAD588D" type="email">iuribaseia@gmail.com</mods:nameIdentifier>
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<mods:typeOfResource id="5E1B755886694333393C3A7AAC7E6A0E">text</mods:typeOfResource>
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<mods:title id="B6F5D44DC7F82B8F27A90C732308D64F">Phytotaxa</mods:title>
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<mods:part id="16E8EE6AD0BDEBE57F4459DA1C0AB822">
<mods:date id="3C5D1F41FA3A623569EA8C228AC99F05">2022</mods:date>
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<mods:number id="0B8431A4CE30822DF3529FCD1BF61F3D">2022-03-07</mods:number>
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<mods:detail id="25BFE0B35C8D4E0F9F0B8FA78BE8B03D" type="volume">
<mods:number id="84092A8986AFCADF97E830F6D9F68CFE">538</mods:number>
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<mods:number id="3C96DA74A01B053C77A2F4F82B92F5E4">2</mods:number>
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<mods:classification id="2AC160148F50FBCB16306D7DAA418378">journal article</mods:classification>
<mods:identifier id="3BDE0C7DD4336C9D08C7193D65149360" type="CLB-Dataset">20388</mods:identifier>
<mods:identifier id="AE2580EDEFB49ED39C2A2F13873B00DB" type="DOI">10.11646/phytotaxa.538.2.1</mods:identifier>
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<mods:identifier id="5D7E9E72A88BC07AEA1B9D7DF9E1101E" type="ISSN">1179-3163</mods:identifier>
<mods:identifier id="2C8CF1236164C2155C82A44AC107A421" type="Zenodo-Dep">6333654</mods:identifier>
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<treatment id="03B14A56265EFF85FF19ED99FDDB0694" ID-DOI="http://doi.org/10.5281/zenodo.6335079" ID-GBIF-Taxon="193876562" ID-Zenodo-Dep="6335079" LSID="urn:lsid:plazi:treatment:03B14A56265EFF85FF19ED99FDDB0694" httpUri="http://treatment.plazi.org/id/03B14A56265EFF85FF19ED99FDDB0694" lastPageId="7" lastPageNumber="94" pageId="5" pageNumber="92">
<subSubSection id="C302A8CB265EFF87FF19ED99FE49054F" pageId="5" pageNumber="92" type="nomenclature">
<paragraph id="8BA7FB40265EFF87FF19ED99FB520517" blockId="5.[136,1175,244,271]" box="[136,1175,244,271]" pageId="5" pageNumber="92">
<heading id="D0EF4C2C265EFF87FF19ED99FB520517" box="[136,1175,244,271]" fontSize="11" level="2" pageId="5" pageNumber="92" reason="3">
<taxonomicName id="4C1880C3265EFF87FF19ED99FC6A0517" ID-CoL="B2MK6" authority="M.D. Xavier, Silva-Filho &amp; Wartchow" authorityName="M. D. Xavier, Silva-Filho &amp; Wartchow FW" authorityYear="2022" box="[136,943,244,271]" class="Agaricomycetes" family="Entolomataceae" genus="Rhodocybe" kingdom="Fungi" order="Agaricales" pageId="5" pageNumber="92" phylum="Basidiomycota" rank="variety" species="mellea" status="var. nov." variety="depressa">
<emphasis id="B96C2752265EFF87FF19ED99FE3F0516" bold="true" box="[136,506,244,271]" pageId="5" pageNumber="92">
<emphasis id="B96C2752265EFF87FF19ED99FE9E0516" bold="true" box="[136,347,244,271]" italics="true" pageId="5" pageNumber="92">Rhodocybe mellea</emphasis>
var.
<emphasis id="B96C2752265EFF87FE07ED99FE3F0516" bold="true" box="[406,506,244,271]" italics="true" pageId="5" pageNumber="92">depressa</emphasis>
</emphasis>
M.D. Xavier, Silva-Filho &amp; Wartchow
</taxonomicName>
<taxonomicNameLabel id="A25F9A29265EFF87FC27ED98FBD30516" box="[950,1046,245,271]" pageId="5" pageNumber="92" rank="variety">var. nov.</taxonomicNameLabel>
(
<figureCitation id="1323E7C5265EFF87FBB4ED99FB4A0517" box="[1061,1167,244,270]" captionStart-0="FIGURE 2" captionStart-1="FIGURE 3" captionStart-2="FIGURE 4" captionStartId-0="5.[136,229,2032,2054]" captionStartId-1="6.[136,229,1303,1325]" captionStartId-2="7.[136,229,1633,1655]" captionTargetBox-0="[177,1410,439,2007]" captionTargetBox-1="[151,1436,190,1279]" captionTargetBox-2="[177,1416,708,1552]" captionTargetId-0="figure-54@5.[177,1410,439,2007]" captionTargetId-1="figure-32@6.[151,1436,190,1279]" captionTargetId-2="figure-195@7.[151,1436,677,1609]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionTargetPageId-2="7" captionText-0="FIGURE 2. Photographs of the habitat and fresh basidiomata of Rhodocybe mellea var. depressa (holotype UFRN-Fungos 3386). a Basidiomata. b Coastal Tableland, Savanna vegetation. Scale bars: 10 mm. Photos by J.O. Sousa and F. Wartchow." captionText-1="FIGURE 3. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a From L–R: Sclerobasidia, basidia and pseudocystidia. b Basidiospores. c Sclerobasidia. d Pileipellis. a, b and d: in KOH 5%; c: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier." captionText-2="FIGURE 4. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a Basidiospores. b Basidia and sclerobasidia. c Pseudocystidia. d Pileipellis: suprapellis structure and terminal hyphae. Scale bars: 5 μm. Drawings by A.G.S. Silva- Filho." figureDoi-0="http://doi.org/10.5281/zenodo.6333658" figureDoi-1="http://doi.org/10.5281/zenodo.6333662" figureDoi-2="http://doi.org/10.5281/zenodo.6333664" httpUri-0="https://zenodo.org/record/6333658/files/figure.png" httpUri-1="https://zenodo.org/record/6333662/files/figure.png" httpUri-2="https://zenodo.org/record/6333664/files/figure.png" pageId="5" pageNumber="92">Figs. 2–4</figureCitation>
)
</heading>
</paragraph>
<paragraph id="8BA7FB40265EFF87FF19EC2DFE49054F" blockId="5.[136,1452,320,414]" box="[136,396,320,342]" pageId="5" pageNumber="92">MycoBank:—MB 842858.</paragraph>
</subSubSection>
<subSubSection id="C302A8CB265EFF85FF19EC09FDDB0694" lastPageId="7" lastPageNumber="94" pageId="5" pageNumber="92" type="materials_examined">
<paragraph id="8BA7FB40265EFF87FF19EC09FDD40584" blockId="5.[136,1452,320,414]" pageId="5" pageNumber="92">
<materialsCitation id="3B70F11D265EFF87FF19EC09FBF10560" ID-GBIF-Occurrence="3697258302" box="[136,1076,356,378]" collectingDate="2019-07-23" collectionCode="SEMA, II" country="Brazil" county="Type" location="Reserva Biologica Guaribas" municipality="Mamanguape" pageId="5" pageNumber="92" specimenCount="1" stateProvince="Paraiba">
<collectingCounty id="62C683CC265EFF87FF19EC09FF7F0560" box="[136,186,356,377]" pageId="5" pageNumber="92">Type</collectingCounty>
:—
<collectingCountry id="F30FBBD0265EFF87FF47EC09FEF50560" box="[214,304,356,377]" name="Brazil" pageId="5" pageNumber="92">BRAZIL</collectingCountry>
.
<collectingRegion id="49DC35A2265EFF87FEADEC09FE420563" box="[316,391,356,378]" country="Brazil" name="Paraiba" pageId="5" pageNumber="92">Paraíba</collectingRegion>
,
<collectingMunicipality id="6BC3613A265EFF87FE02EC09FDDD0560" box="[403,536,356,377]" pageId="5" pageNumber="92">Mamanguape</collectingMunicipality>
,
<location id="8EC7AD9B265EFF87FDB4EC09FCFF0563" LSID="urn:lsid:plazi:treatment:03B14A56265EFF85FF19ED99FDDB0694:8EC7AD9B265EFF87FDB4EC09FCFF0563" box="[549,826,356,378]" country="Brazil" county="Type" municipality="Mamanguape" name="Reserva Biologica Guaribas" pageId="5" pageNumber="92" stateProvince="Paraiba">Reserva Biológica Guaribas</location>
,
<collectionCode id="ED096385265EFF87FCD6EC09FC660560" box="[839,931,356,377]" pageId="5" pageNumber="92">SEMA II</collectionCode>
,
<date id="FFA6DD80265EFF87FC21EC09FBF10560" box="[944,1076,356,378]" pageId="5" pageNumber="92" value="2019-07-23">
<collectingDate id="EFE22468265EFF87FC21EC09FBF10560" box="[944,1076,356,378]" pageId="5" pageNumber="92" value="2019-07-23">23 July 2019</collectingDate>
</date>
</materialsCitation>
,
<materialsCitation id="3B70F11D265EFF87FBD3EC09FDD40584" ID-GBIF-Occurrence="3697258301" collectionCode="JPB" collectorName="F. Wartchow" country="Brazil" pageId="5" pageNumber="92" specimenCount="1" stateProvince="Paraiba" typeStatus="holotype">
<collectorName id="26ED9E96265EFF87FBD3EC09FB7A0563" box="[1090,1215,356,378]" pageId="5" pageNumber="92">F. Wartchow</collectorName>
, FW 08/2019 (
<typeStatus id="54A345E2265EFF87FAC7EC09FA690563" box="[1366,1452,356,378]" pageId="5" pageNumber="92" type="holotype">holotype</typeStatus>
UFRN-Fungos 3386!; isotype
<collectionCode id="ED096385265EFF87FE73ECE5FDCF0584" box="[482,522,392,413]" country="Brazil" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14329" lsid="urn:lsid:biocol.org:col:14329" name="Universidade Federal da Paraíba, Cidade Universitária" pageId="5" pageNumber="92" type="Herbarium">JPB</collectionCode>
)
</materialsCitation>
</paragraph>
<caption id="DF67ABC8265EFF87FF19EA9DFB220C33" ID-DOI="http://doi.org/10.5281/zenodo.6333658" ID-Zenodo-Dep="6333658" httpUri="https://zenodo.org/record/6333658/files/figure.png" pageId="5" pageNumber="92" startId="5.[136,229,2032,2054]" targetBox="[177,1410,439,2007]" targetPageId="5">
<paragraph id="8BA7FB40265EFF87FF19EA9DFB220C33" blockId="5.[136,1452,2032,2090]" pageId="5" pageNumber="92">
<emphasis id="B96C2752265EFF87FF19EA9DFEC70C1C" bold="true" box="[136,258,2032,2054]" pageId="5" pageNumber="92">FIGURE 2.</emphasis>
Photographs of the habitat and fresh basidiomata of
<taxonomicName id="4C1880C3265EFF87FCB2EA9DFBA10C1C" authorityName="M. D. Xavier, Silva-Filho &amp; Wartchow FW" authorityYear="2022" box="[803,1124,2032,2054]" class="Agaricomycetes" family="Entolomataceae" genus="Rhodocybe" kingdom="Fungi" order="Agaricales" pageId="5" pageNumber="92" phylum="Basidiomycota" rank="variety" species="mellea" variety="depressa">
<emphasis id="B96C2752265EFF87FCB2EA9DFC1D0C1C" box="[803,984,2032,2053]" italics="true" pageId="5" pageNumber="92">Rhodocybe mellea</emphasis>
var.
<emphasis id="B96C2752265EFF87FB81EA9DFBA10C1C" box="[1040,1124,2032,2053]" italics="true" pageId="5" pageNumber="92">depressa</emphasis>
</taxonomicName>
(holotype UFRN-Fungos 3386).
<emphasis id="B96C2752265EFF87FF19E579FF510C30" bold="true" box="[136,148,2068,2089]" pageId="5" pageNumber="92">a</emphasis>
Basidiomata.
<emphasis id="B96C2752265EFF87FE8FE579FEEE0C30" bold="true" box="[286,299,2068,2089]" pageId="5" pageNumber="92">b</emphasis>
Coastal Tableland, Savanna vegetation. Scale bars: 10 mm. Photos by J.O. Sousa and F. Wartchow.
</paragraph>
</caption>
<caption id="DF67ABC8265DFF84FF19E87AFEA8016F" ID-DOI="http://doi.org/10.5281/zenodo.6333662" ID-Zenodo-Dep="6333662" httpUri="https://zenodo.org/record/6333662/files/figure.png" pageId="6" pageNumber="93" startId="6.[136,229,1303,1325]" targetBox="[151,1436,190,1279]" targetPageId="6">
<paragraph id="8BA7FB40265DFF84FF19E87AFEA8016F" blockId="6.[136,1452,1303,1398]" pageId="6" pageNumber="93">
<emphasis id="B96C2752265DFF84FF19E87AFF3A0134" bold="true" box="[136,255,1303,1325]" pageId="6" pageNumber="93">FIGURE 3.</emphasis>
<taxonomicName id="4C1880C3265DFF84FE97E875FDF80134" authorityName="M. D. Xavier, Silva-Filho &amp; Wartchow FW" authorityYear="2022" box="[262,573,1304,1325]" class="Agaricomycetes" family="Entolomataceae" genus="Rhodocybe" kingdom="Fungi" order="Agaricales" pageId="6" pageNumber="93" phylum="Basidiomycota" rank="variety" species="mellea" variety="depressa">
<emphasis id="B96C2752265DFF84FE97E875FE720134" box="[262,439,1304,1325]" italics="true" pageId="6" pageNumber="93">Rhodocybe mellea</emphasis>
var.
<emphasis id="B96C2752265DFF84FE78E875FDF80134" box="[489,573,1304,1325]" italics="true" pageId="6" pageNumber="93">depressa</emphasis>
</taxonomicName>
microscopic features (holotype UFRN-Fungos 3386).
<emphasis id="B96C2752265DFF84FBC3E875FB9B0134" bold="true" box="[1106,1118,1304,1325]" pageId="6" pageNumber="93">a</emphasis>
From L–R: Sclerobasidia, basidia and pseudocystidia.
<emphasis id="B96C2752265DFF84FEDCE851FE9F0148" bold="true" box="[333,346,1340,1361]" pageId="6" pageNumber="93">b</emphasis>
Basidiospores.
<emphasis id="B96C2752265DFF84FE64E851FDC50148" bold="true" box="[501,512,1340,1361]" pageId="6" pageNumber="93">c</emphasis>
Sclerobasidia.
<emphasis id="B96C2752265DFF84FD04E851FD670148" bold="true" box="[661,674,1340,1361]" pageId="6" pageNumber="93">d</emphasis>
Pileipellis.
<emphasis id="B96C2752265DFF84FC87E851FCF90148" bold="true" box="[790,828,1340,1361]" pageId="6" pageNumber="93">a, b</emphasis>
and
<emphasis id="B96C2752265DFF84FCFCE851FCBF0148" bold="true" box="[877,890,1340,1361]" pageId="6" pageNumber="93">d</emphasis>
: in KOH 5%;
<emphasis id="B96C2752265DFF84FB9AE851FBD30148" bold="true" box="[1035,1046,1340,1361]" pageId="6" pageNumber="93">c</emphasis>
: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier.
</paragraph>
</caption>
<paragraph id="8BA7FB40265DFF84FF19E8C9FCC1021E" blockId="6.[136,1452,1444,2083]" pageId="6" pageNumber="93">
Diagnosis:—
<taxonomicName id="4C1880C3265DFF84FE8DE8C9FD4C01A7" authorityName="M. D. Xavier, Silva-Filho &amp; Wartchow FW" authorityYear="2022" box="[284,649,1444,1471]" class="Agaricomycetes" family="Entolomataceae" genus="Rhodocybe" kingdom="Fungi" order="Agaricales" pageId="6" pageNumber="93" phylum="Basidiomycota" rank="variety" species="mellea" variety="depressa">
<emphasis id="B96C2752265DFF84FE8DE8C9FE2901A7" box="[284,492,1444,1470]" italics="true" pageId="6" pageNumber="93">Rhodocybe mellea</emphasis>
var.
<emphasis id="B96C2752265DFF84FDB7E8C9FD4C01A7" box="[550,649,1444,1470]" italics="true" pageId="6" pageNumber="93">depressa</emphasis>
</taxonomicName>
is distinguished by its depressed pileus; the presence of abundant and conspicuous sclerobasidia; small, flexuous-cylindrical pseudocystidia; pileipellis a smooth two-layered cutis; sandy soil habitat; and unique nuclear
<collectionCode id="ED096385265DFF84FE7EE881FDDC021F" box="[495,537,1516,1542]" pageId="6" pageNumber="93">ITS</collectionCode>
and
<collectionCode id="ED096385265DFF84FDDEE881FD41021F" box="[591,644,1516,1542]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15590" lsid="urn:lsid:biocol.org:col:15590" name="Louisiana State University - Herbarium" pageId="6" pageNumber="93" type="Herbarium">LSU</collectionCode>
sequences.
</paragraph>
<paragraph id="8BA7FB40265DFF84FF2CEB7DFBCD033F" blockId="6.[136,1452,1444,2083]" pageId="6" pageNumber="93">
Description:—Basidiomata collybioid(
<figureCitation id="1323E7C5265DFF84FDE3EB7DFD040233" box="[626,705,1552,1578]" captionStart="FIGURE 2" captionStartId="5.[136,229,2032,2054]" captionTargetBox="[177,1410,439,2007]" captionTargetId="figure-54@5.[177,1410,439,2007]" captionTargetPageId="5" captionText="FIGURE 2. Photographs of the habitat and fresh basidiomata of Rhodocybe mellea var. depressa (holotype UFRN-Fungos 3386). a Basidiomata. b Coastal Tableland, Savanna vegetation. Scale bars: 10 mm. Photos by J.O. Sousa and F. Wartchow." figureDoi="http://doi.org/10.5281/zenodo.6333658" httpUri="https://zenodo.org/record/6333658/files/figure.png" pageId="6" pageNumber="93">Fig.2a</figureCitation>
). Pileus
<quantity id="4CE056A5265DFF84FC8AEB7DFC570232" box="[795,914,1552,1579]" metricMagnitude="-2" metricUnit="m" metricValue="2.4" metricValueMax="3.5" metricValueMin="1.3" pageId="6" pageNumber="93" unit="mm" value="24.0" valueMax="35.0" valueMin="13.0">13−35 mm</quantity>
broad, convex with a depressed center, becoming plane and depressed, brownish orange (
<collectionCode id="ED096385265DFF84FDAFEB59FDBE0257" box="[574,635,1588,1614]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
729), paling to yellowish orange (
<collectionCode id="ED096385265DFF84FC69EB59FBF00257" box="[1016,1077,1588,1614]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
791); surface dry, hygrophanous; margin entire to slightly sulcated, decurved to straight, sometimes lobed; context fleshy,
<quantity id="4CE056A5265DFF84FB14EB35FB0D026A" box="[1157,1224,1624,1651]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="93" unit="mm" value="1.0">1 mm</quantity>
thick, cream (
<collectionCode id="ED096385265DFF84FAFFEB35FA6E026B" box="[1390,1451,1624,1650]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
791), unchanging. Lamellae adnexed with a decurrent tooth, moderately close to close, cream-orange (
<collectionCode id="ED096385265DFF84FB6AEB11FAFD028F" box="[1275,1336,1660,1686]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
717);
<quantity id="4CE056A5265DFF84FA11EB11FF7102A2" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="6" pageNumber="93" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">2−4 mm</quantity>
broad, margin slightly eroded to wavy, concolorous with sides; lamellulae of varying lengths. Stipe 21−30 ×
<quantity id="4CE056A5265DFF84FA11EBCDFF7302C6" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="7.0" metricValueMin="2.0" pageId="6" pageNumber="93" unit="mm" value="4.5" valueMax="7.0" valueMin="2.0">2−7 mm</quantity>
, equal to slightly enlarged at the base, terete when young, becoming compressed, sometimes slightly flexuous, cream-orange (
<collectionCode id="ED096385265DFF84FEA3EB85FEAA031B" box="[306,367,1768,1794]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
717); surface dry, smooth to slightly pruinose; consistency cartilaginous; context solid, fibrous, dark cream (
<collectionCode id="ED096385265DFF84FE85EA61FE94033F" box="[276,337,1804,1830]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15363" lsid="urn:lsid:biocol.org:col:15363" name="University of Guelph" pageId="6" pageNumber="93" type="Herbarium">OAC</collectionCode>
793); spore print not obtained; odor and taste not determined.
</paragraph>
<paragraph id="8BA7FB40265DFF85FF2CEA5DFC7405C1" blockId="6.[136,1452,1444,2083]" lastBlockId="7.[136,1452,158,653]" lastPageId="7" lastPageNumber="94" pageId="6" pageNumber="93">
Basidiospores 5.2−6.5 × 4.1−5.4 (5.8 ± 0.30 × 4.7 ± 0.28 μm), E = (1.05)1.12−1.38, Q = 1.25, n = 60/2, subglobose to broadly ellipsoid, very rarely globose in profile view, angular in polar view with 7–9 angles, undulate-pustulate in all views, lacking a suprahilar plage, thin-walled, hyaline (
<figureCitation id="1323E7C5265DFF84FD60EA15FC8E038A" box="[753,843,1912,1939]" captionStart="FIGURE 3" captionStartId="6.[136,229,1303,1325]" captionTargetBox="[151,1436,190,1279]" captionTargetId="figure-32@6.[151,1436,190,1279]" captionTargetPageId="6" captionText="FIGURE 3. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a From L–R: Sclerobasidia, basidia and pseudocystidia. b Basidiospores. c Sclerobasidia. d Pileipellis. a, b and d: in KOH 5%; c: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier." figureDoi="http://doi.org/10.5281/zenodo.6333662" httpUri="https://zenodo.org/record/6333662/files/figure.png" pageId="6" pageNumber="93">Figs. 3b</figureCitation>
–
<figureCitation id="1323E7C5265DFF84FCCDEA15FCBD038A" box="[860,888,1912,1939]" captionStart="FIGURE 4" captionStartId="7.[136,229,1633,1655]" captionTargetBox="[177,1416,708,1552]" captionTargetId="figure-195@7.[151,1436,677,1609]" captionTargetPageId="7" captionText="FIGURE 4. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a Basidiospores. b Basidia and sclerobasidia. c Pseudocystidia. d Pileipellis: suprapellis structure and terminal hyphae. Scale bars: 5 μm. Drawings by A.G.S. Silva- Filho." figureDoi="http://doi.org/10.5281/zenodo.6333664" httpUri="https://zenodo.org/record/6333664/files/figure.png" pageId="6" pageNumber="93">4a</figureCitation>
). Basidia 22.4−30 × 7.4−8.1 μm clavate, 4-spored, thin-walled, hyaline, some with yellowish contents in KOH 5%; sterigmata 4.5−5 μm long; sclerobasidia abundant, 4-spored, broadly clavate, 23.6−34.4 × 5.1−8.1 μm, with walls up to 1.2 μm thick (
<figureCitation id="1323E7C5265DFF84FBA8EAADFB6F03C3" box="[1081,1194,1984,2010]" captionStart="FIGURE 3" captionStartId="6.[136,229,1303,1325]" captionTargetBox="[151,1436,190,1279]" captionTargetId="figure-32@6.[151,1436,190,1279]" captionTargetPageId="6" captionText="FIGURE 3. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a From L–R: Sclerobasidia, basidia and pseudocystidia. b Basidiospores. c Sclerobasidia. d Pileipellis. a, b and d: in KOH 5%; c: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier." figureDoi="http://doi.org/10.5281/zenodo.6333662" httpUri="https://zenodo.org/record/6333662/files/figure.png" pageId="6" pageNumber="93">Figs. 3a,c</figureCitation>
;
<figureCitation id="1323E7C5265DFF84FB26EAADFB1203C2" box="[1207,1239,1984,2011]" captionStart="FIGURE 4" captionStartId="7.[136,229,1633,1655]" captionTargetBox="[177,1416,708,1552]" captionTargetId="figure-195@7.[151,1436,677,1609]" captionTargetPageId="7" captionText="FIGURE 4. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a Basidiospores. b Basidia and sclerobasidia. c Pseudocystidia. d Pileipellis: suprapellis structure and terminal hyphae. Scale bars: 5 μm. Drawings by A.G.S. Silva- Filho." figureDoi="http://doi.org/10.5281/zenodo.6333664" httpUri="https://zenodo.org/record/6333664/files/figure.png" pageId="6" pageNumber="93">4b</figureCitation>
). Pleurocystidia as pseudocystidia 26.5−41 × 5.2−7.3 μm, originating from the subhymenium, mostly not conspicuously projecting from hymenium, flexuous-cylindrical with rounded to aculeate apex, thin-walled, with pale yellow amorphous contents in KOH 5% (
<figureCitation id="1323E7C5265CFF85FE91EDF3FE9C04A1" box="[256,345,158,184]" captionStart="FIGURE 3" captionStartId="6.[136,229,1303,1325]" captionTargetBox="[151,1436,190,1279]" captionTargetId="figure-32@6.[151,1436,190,1279]" captionTargetPageId="6" captionText="FIGURE 3. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a From L–R: Sclerobasidia, basidia and pseudocystidia. b Basidiospores. c Sclerobasidia. d Pileipellis. a, b and d: in KOH 5%; c: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier." figureDoi="http://doi.org/10.5281/zenodo.6333662" httpUri="https://zenodo.org/record/6333662/files/figure.png" pageId="7" pageNumber="94">Figs. 3a</figureCitation>
–
<figureCitation id="1323E7C5265CFF85FEFBEDF3FE4304A1" box="[362,390,158,184]" captionStart="FIGURE 4" captionStartId="7.[136,229,1633,1655]" captionTargetBox="[177,1416,708,1552]" captionTargetId="figure-195@7.[151,1436,677,1609]" captionTargetPageId="7" captionText="FIGURE 4. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a Basidiospores. b Basidia and sclerobasidia. c Pseudocystidia. d Pileipellis: suprapellis structure and terminal hyphae. Scale bars: 5 μm. Drawings by A.G.S. Silva- Filho." figureDoi="http://doi.org/10.5281/zenodo.6333664" httpUri="https://zenodo.org/record/6333664/files/figure.png" pageId="7" pageNumber="94">4c</figureCitation>
). Lamellae edge mixed composed of a few basidia and abundant pseudo-cheilocystidia, similar to the pseudo-pleurocystidia. Subhymenium ramose. Lamellar trama regular, composed of cylindrical hyphae, 4.1−7.3 μm wide, thin-walled, hyaline; oleiferous hyphae present, abundant. Pileus trama subregular, composed of cylindrical hyphae, 3.3−6.1 μm wide, hyaline, thin-walled and smooth; oleiferous hyphae present, abundant, 2.3−3.7 μm wide. Pileipellis a cutis composed of two layers, golden yellow in KOH 5% (
<figureCitation id="1323E7C5265CFF85FC1DEC43FC1B0550" box="[908,990,302,329]" captionStart="FIGURE 3" captionStartId="6.[136,229,1303,1325]" captionTargetBox="[151,1436,190,1279]" captionTargetId="figure-32@6.[151,1436,190,1279]" captionTargetPageId="6" captionText="FIGURE 3. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a From L–R: Sclerobasidia, basidia and pseudocystidia. b Basidiospores. c Sclerobasidia. d Pileipellis. a, b and d: in KOH 5%; c: stained in Congo Red. Scale bars: 5 μm. Photos by M.D. Xavier." figureDoi="http://doi.org/10.5281/zenodo.6333662" httpUri="https://zenodo.org/record/6333662/files/figure.png" pageId="7" pageNumber="94">Fig. 3d</figureCitation>
): suprapellis as a more separate layer with cylindrical entangled periclinal hyphae, thin-walled, smooth, and cylindrical-clavate terminal hyphae with rounded to inflated apex, 2.5−3.1 μm wide (
<figureCitation id="1323E7C5265CFF85FE67EC1BFD8E0588" box="[502,587,374,401]" captionStart="FIGURE 4" captionStartId="7.[136,229,1633,1655]" captionTargetBox="[177,1416,708,1552]" captionTargetId="figure-195@7.[151,1436,677,1609]" captionTargetPageId="7" captionText="FIGURE 4. Rhodocybe mellea var. depressa microscopic features (holotype UFRN-Fungos 3386). a Basidiospores. b Basidia and sclerobasidia. c Pseudocystidia. d Pileipellis: suprapellis structure and terminal hyphae. Scale bars: 5 μm. Drawings by A.G.S. Silva- Filho." figureDoi="http://doi.org/10.5281/zenodo.6333664" httpUri="https://zenodo.org/record/6333664/files/figure.png" pageId="7" pageNumber="94">Fig. 4d</figureCitation>
); subpellis a layer with strongly entangled periclinal hyphae, thin-walled and smooth. Stipitipellis a cutis of parallel hyphae, 3.6−6.4 μm wide, thin-walled to slightly thick-walled, and smooth. Caulocystidia absent. Clamp connections absent in all examined tissues.
</paragraph>
<paragraph id="8BA7FB40265CFF85FF2CEC8FFB0405E5" blockId="7.[136,1452,158,653]" box="[189,1217,482,509]" pageId="7" pageNumber="94">
Etymology:—The name ‘
<emphasis id="B96C2752265CFF85FE4CEC8FFD8505E5" box="[477,576,482,508]" italics="true" pageId="7" pageNumber="94">depressa</emphasis>
’ comes from the Latin and refers to the depressed pileus.
</paragraph>
<paragraph id="8BA7FB40265CFF85FF2CEF6BFD71065C" blockId="7.[136,1452,158,653]" pageId="7" pageNumber="94">
Habitat:—Saprotrophic, gregarious, growing on sandy soil among leaf litter. Coastal tableland landscape with Brazilian Savanna (Cerrado) vegetation (
<figureCitation id="1323E7C5265CFF85FDC2EF47FD62065C" box="[595,679,554,581]" captionStart="FIGURE 2" captionStartId="5.[136,229,2032,2054]" captionTargetBox="[177,1410,439,2007]" captionTargetId="figure-54@5.[177,1410,439,2007]" captionTargetPageId="5" captionText="FIGURE 2. Photographs of the habitat and fresh basidiomata of Rhodocybe mellea var. depressa (holotype UFRN-Fungos 3386). a Basidiomata. b Coastal Tableland, Savanna vegetation. Scale bars: 10 mm. Photos by J.O. Sousa and F. Wartchow." figureDoi="http://doi.org/10.5281/zenodo.6333658" httpUri="https://zenodo.org/record/6333658/files/figure.png" pageId="7" pageNumber="94">Fig. 2b</figureCitation>
).
</paragraph>
<paragraph id="8BA7FB40265CFF85FF2CEF23FD370671" blockId="7.[136,1452,158,653]" box="[189,754,590,617]" pageId="7" pageNumber="94">
Distribution:—Known only from the
<typeStatus id="54A345E2265CFF85FDF0EF22FD540670" box="[609,657,591,617]" pageId="7" pageNumber="94">type</typeStatus>
locality.
</paragraph>
<paragraph id="8BA7FB40265CFF85FF2CEF1FFDDB0694" blockId="7.[136,1452,158,653]" box="[189,542,626,653]" pageId="7" pageNumber="94">
Material examined:—The
<typeStatus id="54A345E2265CFF85FE77EF1EFDDF0694" box="[486,538,627,653]" pageId="7" pageNumber="94">type</typeStatus>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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